Patient interface



FIG. 1 is a front perspective view of a patient interface showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a rear elevational view thereof.

The broken lines in the drawings depict portions of the patient interface that form no part of the claimed design. 

CLAIM The ornamental design for a patient interface, as shown and described. 